According to sources close to the situation, Yahoo has instituted a hiring freeze across the company and is considering a reduction-in-force in support units of the company.

While the details of any layoffs — which are expected to be small and selective for now — are still being worked out, sources said that the stricture not to fill hundreds of open positions is the first step toward significant cost-cutting initiatives across the Silicon Valley Internet giant, in the wake of what it expected to be another weak quarterly report next week and a looming proxy fight.

Yahoo reports its fourth quarter earnings Tuesday. While the company has managed to improve the results in the last part of the quarter, sources said they will still show continued weakness in its key businesses and consumer usage.

That’s as competitors such as Google and Facebook are expected to show significant growth, especially in the display advertising market.

Thus, new Yahoo CEO Scott Thompson appears to be zeroing in on costs and managing for margins, said multiple sources, much as his predecessor Carol Bartz did at the start of her tenure.

But many think Yahoo needs even more drastic changes, including massive cuts in staff and also product arenas, to give the company new life.